Alert archive / South Carolina / Tornado Warnings in 2021
Tornado Warning 59, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this tornado warning at Aug 17, 2021, 6:46 PM EDT for Cherokee County, Spartanburg County, South Carolina. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 17, 2021, 6:46 PM EDT (22:46 UTC)
- Expired
- Aug 17, 2021, 7:30 PM EDT
- In force
- 44 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Cherokee County, SC, Spartanburg County, SC
The radar
The Greer radar (KGSP), 21 km from the middle of the area, began a volume at 22:48 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 17, 6:28 PM EDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.8 hours before the alert went out and 229 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 522 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 593 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
The text
As transmitted.
987
WFUS52 KGSP 172246
TORGSP
SCC021-083-172330-
/O.NEW.KGSP.TO.W.0059.210817T2246Z-210817T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Greenville-Spartanburg SC
646 PM EDT Tue Aug 17 2021
The National Weather Service in Greenville-Spartanburg has issued a
* Tornado Warning for...
Central Spartanburg County in Upstate South Carolina...
Northwestern Cherokee County in Upstate South Carolina...
* Until 730 PM EDT.
* At 646 PM EDT, a severe thunderstorm capable of producing a tornado
was located 9 miles southwest of Spartanburg, or near Moore, moving
north at 30 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Spartanburg, Roebuck, Cedar Springs, Wellford and Croft State Park
around 700 PM EDT.
USC Upstate around 710 PM EDT.
Boiling Springs SC, Lake Bowen and Cowpens around 720 PM EDT.
Chesnee, Mayo and Cowpens National Battlefield around 730 PM EDT.
Other locations impacted by this dangerous thunderstorm include
Fingerville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Please report damaging winds, hail, or flooding to the National
Weather Service by calling toll free, 1, 800, 2 6 7, 8 1 0 1, or by
posting on our Facebook page, or Tweet it using hashtag nwsgsp. Your
message should describe the event and the specific location where it
occurred.
&&
LAT...LON 3479 8216 3519 8202 3518 8169 3472 8195
TIME...MOT...LOC 2246Z 200DEG 26KT 3483 8203
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
CAC1 follow-up statement
080
WWUS52 KGSP 172306
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
706 PM EDT Tue Aug 17 2021
SCC021-083-172330-
/O.CON.KGSP.TO.W.0059.000000T0000Z-210817T2330Z/
Spartanburg SC-Cherokee SC-
706 PM EDT Tue Aug 17 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR NORTHERN
SPARTANBURG AND NORTHWESTERN CHEROKEE COUNTIES...
At 706 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Spartanburg, or near USC Upstate, moving north at 30
mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Boiling Springs SC, Lake Bowen and Cowpens around 720 PM EDT.
Mayo and Cowpens National Battlefield around 730 PM EDT.
Chesnee around 740 PM EDT.
Other locations impacted by this tornadic thunderstorm include
Fingerville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3490 8212 3519 8202 3518 8169 3485 8188
TIME...MOT...LOC 2306Z 200DEG 26KT 3497 8197
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
CACThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 11:47 AM EDT | Tornado Warning | GSP | Oconee | 13 min |
| Aug 17, 12:30 PM EDT | Flash Flood Warning | GSP | Oconee | 5 hr |
| Aug 17, 12:30 PM EDT | Tornado Warning | GSP | Oconee, Pickens | 23 min |
| Aug 17, 12:59 PM EDT | Tornado Warning | GSP | Anderson, Pickens | 23 min |
| Aug 17, 1:20 PM EDT | Tornado Warning | GSP | Pickens | 25 min |
| Aug 17, 2:03 PM EDT | Flash Flood Warning | GSP | Greenville, Pickens | 5 hr |
| Aug 17, 2:14 PM EDT | Tornado Warning | GSP | Greenwood, Laurens | 33 min |
| Aug 17, 2:52 PM EDT | Tornado Warning | GSP | Greenville | 26 min |
| Aug 17, 3:01 PM EDT | Tornado Warning | GSP | Greenville | 18 min |
| Aug 17, 3:25 PM EDT | Special Weather Statement | GSP | Spartanburg | 35 min |
| Aug 17, 3:26 PM EDT | Special Weather Statement | GSP | Oconee | 34 min |
| Aug 17, 4:34 PM EDT | Special Weather Statement | GSP | Abbeville, Anderson, Pickens | 26 min |
| Aug 17, 5:08 PM EDT | Tornado Warning | GSP | Anderson, Greenville, Pickens | 52 min |
| Aug 17, 5:10 PM EDT | Tornado Warning | GSP | Abbeville, Greenville, Greenwood, Laurens | 50 min |
| Aug 17, 5:11 PM EDT | Tornado Warning | GSP | Abbeville, Greenwood, Laurens | 49 min |
| Aug 17, 5:33 PM EDT | Tornado Warning | GSP | Anderson, Greenville, Spartanburg | 42 min |
| Aug 17, 5:37 PM EDT | Tornado Warning | GSP | Chester, York | 38 min |
| Aug 17, 5:57 PM EDT | Tornado Warning | GSP | Greenville, Laurens, Spartanburg | 48 min |
| Aug 17, 5:58 PM EDT | Tornado Warning | GSP | Greenwood, Laurens | 47 min |
| Aug 17, 6:15 PM EDT | Tornado Warning | GSP | Laurens, Spartanburg, Union | 45 min |
| Aug 17, 6:16 PM EDT | Flash Flood Warning | GSP | Greenville, Pickens, Spartanburg | 3 hr |
| Aug 17, 6:42 PM EDT | Tornado Warning | GSP | Spartanburg | 48 min |
| Aug 17, 6:51 PM EDT | Tornado Warning | GSP | Laurens, Spartanburg, Union | 39 min |
| Aug 17, 7:59 PM EDT | Tornado Warning | GSP | Cherokee, Spartanburg | 46 min |
Nearby
Tornado Warnings in South Carolina, 2021Every tornado warning in 2021Tornadoes in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.